篇三十八：後院山毛櫸樹上的風景：蚜蟲

本篇離開蘑菇。請大家看看這個小東西。山毛櫸樹上的蚜蟲 （Beech Tree Aphids）

Beech blight aphids are also known as boogie-woogie aphids because when a colony is disturbed, the nymphs lift their abdomens high in the air and thrash in unison as an apparent warning to predators. Beech blight aphids are threatened by parasites and predators.